Fair Value (Details) - Investments Schedule - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Fair Value | $ 7,384 | $ 7,061 |
Noncontrolling Interest in Variable Interest Entity | 8,442 | 8,442 |
Assets, Fair Value Disclosure | 91,584 | 47,758 |
Fair Value, Inputs, Level 1 [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Noncontrolling Interest in Variable Interest Entity | 0 | 0 |
Assets, Fair Value Disclosure | 82,131 | 38,305 |
Fair Value, Inputs, Level 2 [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Noncontrolling Interest in Variable Interest Entity | 0 | 0 |
Assets, Fair Value Disclosure | 1,011 | 1,011 |
Fair Value, Inputs, Level 3 [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Noncontrolling Interest in Variable Interest Entity | 8,442 | 8,442 |
Assets, Fair Value Disclosure | 8,442 | 8,442 |
Money Market Funds [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash and Cash Equivalents, Fair Value Disclosure | 75,758 | 32,255 |
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash and Cash Equivalents, Fair Value Disclosure | 75,758 | 32,255 |
Money Market Funds [Member] | Fair Value, Inputs, Level 2 [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash and Cash Equivalents, Fair Value Disclosure | 0 | 0 |
Money Market Funds [Member] | Fair Value, Inputs, Level 3 [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash and Cash Equivalents, Fair Value Disclosure | 0 | 0 |
Deposits [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Fair Value | 6,373 | 6,050 |
Deposits [Member] | Fair Value, Inputs, Level 1 [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Fair Value | 6,373 | 6,050 |
Deposits [Member] | Fair Value, Inputs, Level 2 [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Fair Value | 0 | 0 |
Deposits [Member] | Fair Value, Inputs, Level 3 [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Fair Value | 0 | 0 |
Municipal Bonds [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Fair Value | 1,011 | 1,011 |
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value | 1,011 | 1,011 |
Municipal Bonds [Member] | Fair Value, Inputs, Level 1 [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value | 0 | 0 |
Municipal Bonds [Member] | Fair Value, Inputs, Level 2 [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value | 1,011 | 1,011 |
Municipal Bonds [Member] | Fair Value, Inputs, Level 3 [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value | $ 0 | $ 0 |